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Quick Connect Couplers: 4 balls or 6?

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
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Quick Connect Couplers: 4 balls or 6?

Unread postAuthor: boyntonstu » Fri Apr 09, 2010 7:36 am

My quick connects are ARO style 3/8" high volume with 6 locking balls.

Harbor Freight stopped selling them.

I need a few more connectors for the Oxygen cylinder conversion or convert to another style.

I can try to locate ARO's or take a short drive to Hf and replace the 3/8" with the more popular 1/4" connectors, usually made with 4 balls.

I have not had any leaks with the ARO units up to 650 psi.

What has been your experience with the 4 ball connectors at 600 psi?
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Last edited by boyntonstu on Fri Apr 09, 2010 8:30 am, edited 1 time in total.
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Unread postAuthor: Crna Legija » Fri Apr 09, 2010 7:55 am

i have been using the 4 ball ones since i joined SF and it has just started to leak but thats probly because i have been using it for 3 year and worn them down.
i only use it between 150-300 tho

i got new one that have a button and opens easy at 300 its just like the old one at 100
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Unread postAuthor: deathbyDWV » Fri Apr 09, 2010 8:00 am

I only ever use 3 ball 1/4 inch and only to 150 psi... So, sorry I'm no help...
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Unread postAuthor: jhalek90 » Fri Apr 09, 2010 5:02 pm

My, 4 ball QD has been taken to 500 psi a few times. (20-30 times) and still does not leak.

Hope this helps.
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